695449689 has 32 divisors (see below), whose sum is σ = 1057757184. Its totient is φ = 402314880.

The previous prime is 695449687. The next prime is 695449693. The reversal of 695449689 is 986944596.

It is not a de Polignac number, because 695449689 - 2¹ = 695449687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (695449681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 672717 + ... + 673749.

It is an arithmetic number, because the mean of its divisors is an integer number (33054912).

Almost surely, 2^695449689 is an apocalyptic number.

695449689 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

695449689 is a deficient number, since it is larger than the sum of its proper divisors (362307495).

695449689 is a wasteful number, since it uses less digits than its factorization.

695449689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957.

The product of its digits is 16796160, while the sum is 60.

The square root of 695449689 is about 26371.3801117803. The cubic root of 695449689 is about 885.9758943381.

It can be divided in two parts, 6954496 and 89, that added together give a triangular number (6954585 = T₃₇₂₉).

The spelling of 695449689 in words is "six hundred ninety-five million, four hundred forty-nine thousand, six hundred eighty-nine".